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Finding the Fourth Proportional to 69,708.56, 96,198.04 and 39,499.48

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Solution

The fourth proportional to 69,708.56, 96,198.04 and 39,499.48 is: 54,509.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,708.56 : 96,198.04 = 39,499.48 : x
  2. Step 2: Convert to fraction form
    69,708.56/96,198.04 = 39,499.48/x
  3. Step 3: Cross multiply
    69,708.56x = 96,198.04 × 39,499.48
  4. Step 4: Simplify right side
    69,708.56x = 3,799,772,557.02
  5. Step 5: Solve for x
    x = 3,799,772,557.02/69,708.56
  6. Step 6: Final answer
    x = 54,509.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.